One problem you may run into with multiple adaptors per system is running out of PCI expansion rom space or reducing low memory (below 640k) or collisions with other devices when allocating EBDA data area. Their BIOSes also may not interact well. Beyond that its difficult to say. Thanks -steve On Tue, 2003-08-26 at 17:03, mjstumpf wrote: > In investigating something else, I discovered today I've been using 3 > ultra 100's (all pdc20267, flashed to bios level 2.20.0.14.. though one is > branded Maxtor I think this is irrelevant) successfully with raid 5 & LVM > for quite some time now. Supposedly, this isn't possible!? > > I bounced a question to Promise regarding what the specific limitations > actually are. Their initial answer was "1 per system", so I escalated. > Will bounce their answer here. > > Here's the bootlog from the machine. The only difference I see is that > UDMA burst bit is disabled on the third controller. Not sure what that > would mean in real-world-effect. > > ----- > > Real Time Clock Driver v1.10e > Uniform Multi-Platform E-IDE driver Revision: 6.31 > ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx > PIIX4: IDE controller on PCI bus 00 dev 21 > PIIX4: chipset revision 1 > PIIX4: not 100% native mode: will probe irqs later > ide0: BM-DMA at 0xd800-0xd807, BIOS settings: hda:pio, hdb:pio > ide1: BM-DMA at 0xd808-0xd80f, BIOS settings: hdc:pio, hdd:pio > PDC20267: IDE controller on PCI bus 00 dev 50 > PCI: Found IRQ 12 for device 00:0a.0 > PDC20267: chipset revision 2 > PDC20267: not 100% native mode: will probe irqs later > PDC20267: (U)DMA Burst Bit ENABLED Primary PCI Mode Secondary PCI Mode. > ide2: BM-DMA at 0xa400-0xa407, BIOS settings: hde:pio, hdf:pio > ide3: BM-DMA at 0xa408-0xa40f, BIOS settings: hdg:pio, hdh:pio > PDC20267: IDE controller on PCI bus 00 dev 58 > PCI: Found IRQ 10 for device 00:0b.0 > PDC20267: chipset revision 2 > PDC20267: not 100% native mode: will probe irqs later > PDC20267: (U)DMA Burst Bit ENABLED Primary PCI Mode Secondary PCI Mode. > ide4: BM-DMA at 0x8800-0x8807, BIOS settings: hdi:pio, hdj:pio > ide5: BM-DMA at 0x8808-0x880f, BIOS settings: hdk:pio, hdl:pio > PDC20267: IDE controller on PCI bus 00 dev 60 > PCI: Found IRQ 11 for device 00:0c.0 > PDC20267: chipset revision 2 > PDC20267: not 100% native mode: will probe irqs later > PDC20267: (U)DMA Burst Bit DISABLED Primary PCI Mode Secondary PCI Mode. > ide6: BM-DMA at 0x7000-0x7007, BIOS settings: hdm:pio, hdn:pio > ide7: BM-DMA at 0x7008-0x700f, BIOS settings: hdo:pio, hdp:pio > hde: WDC WD1000BB-00CAA1, ATA DISK drive > hdg: Maxtor 98196H8, ATA DISK drive > hdh: Maxtor 98196H8, ATA DISK drive > hdi: Maxtor 98196H8, ATA DISK drive > hdk: Maxtor 98196H8, ATA DISK drive > hdl: WDC WD2000JB-00DUA0, ATA DISK drive > hdm: WDC WD1200JB-75CRA0, ATA DISK drive > hdn: WDC WD1200JB-75CRA0, ATA DISK drive > hdo: WDC WD1200JB-75CRA0, ATA DISK drive > hdp: WDC WD1200JB-75CRA0, ATA DISK drive > ide2 at 0xb800-0xb807,0xb402 on irq 12 > ide3 at 0xb000-0xb007,0xa802 on irq 12 > ide4 at 0xa000-0xa007,0x9802 on irq 10 > ide5 at 0x9400-0x9407,0x9002 on irq 10 > ide6 at 0x8400-0x8407,0x8002 on irq 11 > ide7 at 0x7800-0x7807,0x7402 on irq 11 > blk: queue c03ebf0c, I/O limit 4095Mb (mask 0xffffffff) > hde: 195371568 sectors (100030 MB) w/2048KiB Cache, CHS=193821/16/63, > UDMA(100) > blk: queue c03ec250, I/O limit 4095Mb (mask 0xffffffff) > hdg: 156301488 sectors (80026 MB) w/2048KiB Cache, CHS=155061/16/63, > UDMA(100) > blk: queue c03ec38c, I/O limit 4095Mb (mask 0xffffffff) > hdh: 156250000 sectors (80000 MB) w/2048KiB Cache, CHS=155009/16/63, > UDMA(100) > blk: queue c03ec594, I/O limit 4095Mb (mask 0xffffffff) > hdi: 156250000 sectors (80000 MB) w/2048KiB Cache, CHS=155009/16/63, > UDMA(100) > blk: queue c03ec8d8, I/O limit 4095Mb (mask 0xffffffff) > hdk: 160086528 sectors (81964 MB) w/2048KiB Cache, CHS=158816/16/63, > UDMA(100) > blk: queue c03eca14, I/O limit 4095Mb (mask 0xffffffff) > hdl: 390721968 sectors (200050 MB) w/8192KiB Cache, CHS=24321/255/63, > UDMA(100) > blk: queue c03ecc1c, I/O limit 4095Mb (mask 0xffffffff) > hdm: setmax LBA 234441648, native 234375000 > hdm: 234375000 sectors (120000 MB) w/8192KiB Cache, CHS=232514/16/63, > UDMA(100) > blk: queue c03ecd58, I/O limit 4095Mb (mask 0xffffffff) > hdn: setmax LBA 234441648, native 234375000 > hdn: 234375000 sectors (120000 MB) w/8192KiB Cache, CHS=232514/16/63, > UDMA(100) > blk: queue c03ecf60, I/O limit 4095Mb (mask 0xffffffff) > hdo: setmax LBA 234375120, native 234375000 > hdo: 234375000 sectors (120000 MB) w/8192KiB Cache, CHS=232514/16/63, > UDMA(100) > blk: queue c03ed09c, I/O limit 4095Mb (mask 0xffffffff) > hdp: setmax LBA 234375120, native 234375000 > hdp: 234375000 sectors (120000 MB) w/8192KiB Cache, CHS=232514/16/63, > UDMA(100) > ide-floppy driver 0.99.newide > Partition check: > hde: hde1 hde2 hde3 > hdg: hdg1 > hdh: hdh1 > hdi: hdi1 > hdk: [PTBL] [9964/255/63] hdk1 > hdl: hdl1 hdl2 > hdm: hdm1 > hdn: hdn1 > hdo: [PTBL] [14589/255/63] hdo1 > hdp: hdp1 > Floppy drive(s): fd0 is 1.44M > FDC 0 is a post-1991 82077 > > > > > - > To unsubscribe from this list: send the line "unsubscribe linux-raid" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > > - To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
